Senior Microsoft Teams Telephony Engineer at RedMatter Solutions

Washington, District of Columbia, United States -

Full Time

Start Date

Immediate

Expiry Date

17 Apr, 26

Salary

0.0

Posted On

17 Jan, 26

Experience

10 year(s) or above

Remote Job

Yes

Telecommute

Yes

Sponsor Visa

Skills

Microsoft Teams, Telephony, Direct Routing, Operator Connect, AudioCodes Mediant, SIP, VoIP, Troubleshooting, PowerShell, Call Routing, e911, Auto-Attendants, Voicemail, Network Security, Incident Response, Documentation

Industry

Information Technology & Services

Description

Description We are seeking a technically experienced and solutions-driven Senior Microsoft Teams Telephony Engineer to lead the design, deployment, and operational support of Microsoft Teams Voice solutions in a secure, enterprise environment. This role is responsible for managing the full lifecycle of Teams Phone services, including Direct Routing, Operator Connect, and Session Border Controllers (SBCs), with a strong focus on AudioCodes Mediant platforms. The ideal candidate will have deep experience in enterprise telephony, strong troubleshooting skills, and the ability to operate in highly available, mission-critical environments. This position partners closely with network, security, and operations teams to ensure reliable, secure, and scalable voice services Responsibilities include: Design, deploy, and operate Microsoft Teams Voice solutions using Direct Routing and Operator Connect Configure, manage, and maintain AudioCodes Mediant Session Border Controllers (SBCs) Build and maintain enterprise dial plans, call routing policies, and number management services Implement and support Teams Voice features, including e911, call queues, auto-attendants, voicemail, and resource accounts Monitor voice infrastructure health, performance, and availability Perform platform upgrades, patching, and lifecycle management of telephony systems Maintain certificate lifecycle management and secure SIP/TLS connectivity Support integration of Teams telephony with enterprise network, identity, and security platforms Troubleshoot and resolve complex voice, SIP, and call quality issues Act as Tier 3 escalation for telephony incidents and outages Participate in incident response, root cause analysis, and service improvement initiatives Maintain technical documentation, standards, and operational procedures Support testing and validation of VoIP devices and Analog Telephone Adapters (ATAs) Collaborate with network, security, and operations teams on architecture and service design Requirements Qualification Requirements: U.S. Citizenship required Active security clearance preferred; must be eligible and able to obtain a clearance Ability to pass background investigation and suitability requirements Availability to work onsite as required Willingness to participate in on-call and after-hours support as needed Bachelor’s degree in Information Systems, Computer Science, Engineering, or related field — or equivalent professional experience Minimum 8+ years of experience in enterprise telephony or unified communications Direct experience supporting Microsoft Teams Phone System in large-scale environments Strong experience with: Microsoft Teams Admin Center Microsoft 365 Admin Center PowerShell scripting and automation Hands-on expertise with: Microsoft Teams Direct Routing and Operator Connect SIP, VoIP routing, and enterprise dial plan design AudioCodes Mediant Session Border Controllers (SBCs) Experience deploying and supporting e911, call queues, auto-attendants, voicemail, and number management Proven ability to troubleshoot complex voice and networking issues Strong written and verbal communication skills Experience supporting multi-site enterprise voice environments

Responsibilities

The Senior Microsoft Teams Telephony Engineer will design, deploy, and operate Microsoft Teams Voice solutions, managing the full lifecycle of Teams Phone services. Responsibilities also include troubleshooting complex voice issues and collaborating with network and security teams.